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Last updated: 3/3/2015 11:21:15 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2008-5558

Original release date: 12/17/2008
Last revised: 03/07/2011


Asterisk Open Source 1.2.26 through and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: SREASON
Name: 4769
External Source: GENTOO
Name: GLSA-200905-01
External Source: BUGTRAQ
Name: 20081210 AST-2008-012: Remote crash vulnerability in IAX2
External Source: VUPEN
Name: ADV-2008-3403
External Source: BID
Name: 32773
External Source: OSVDB
Name: 50675
External Source: CONFIRM
Name: http://downloads.digium.com/pub/security/AST-2008-012.html
External Source: SECTRACK
Name: 1021378

Technical Details

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